OBJECTIVE To evaluate the clinical efficacy of piperacillin/tazobactam for acute exacerbation of chronic obstructive pulmonary disease(AECOPD) with pulmonary encephalopathy.

• 目的评价哌拉西林/他唑巴坦治疗急性加重期慢性阻塞性肺病(AECOPD)并肺性脑病的疗效。